Fill out the form and find out how long you need to run your test in order to get valid test results. This will help you avoid false positives and increase the quality of your A/B testing.

A/B Test Duration & Sample Size Calculator

Pro tip! Play around with the calculator and get a better feel for how baseline conversion rate and desired lift affect sample size and test duration. E.g. a conversion rate of e.g. 2% vs. 10%. Or a lift of 5% vs 30%.

*Validity is based on a significance level of 95% and a power level of 80%